Blade holder



March 13, 1934. c, RUH-SERT BLADE HOLDER Filed June 2, 1933 NVENTOR.Christoph Ru hseri' ATTORNEY.

Patented Mar. 13, 1934 UNITED STATES PATENT OFFICE BLADE HOLDER Claims.

My invention relates to a new and useful improvement in a blade holderand has for its object the provision of a device whereby a safety razorblade or the like may be securely held in 5 position against the innersurface of a glass or other similar cylindrical or curved body, andmoved while in contact therewith for honing or sharpening purposes.

It is another object of the invention to provide a device of this classwhich will be simple in structure, economical of manufacture, durable,light, and easily and quickly operated.

Another object of the invention is the provision of a device of thisclass whereby the supporting portion on which the blade is mounted mayreadily adjust itself to accommodate cylindrical bodies of varioustapers.

Another object of the invention is the provision of a device in which ablade holding portion is projected inwardly of the cylindrical body withwhich used and a guide portion is adapted to embrace or contact with theouter surface of the cylindrical body.

Other objects will appear hereinafter.

The invention consists in the combination and arrangement of partshereinafter described and claimed.

The invention will be best understood by a ref- 7 erence to theaccompanying drawing which forms a part of this specification, and inwhich,

Fig. 1 is a perspective view of the invention.

Fig. 2 is a side elevational view of the invention showing it applied,with parts broken away and parts shown in section.

Fig. 3 is a sectional view taken on line 33 of Fig. 2.

The device comprises a handle-forming portion, and as shown in thedrawing, this handle-forming portion is constructed by doubling uponitself a strip of spring steel to provide the normally separated arms 8and 9 which are bent into contact with each other at 10 and Weldedtogether. An eyelet 13 is formed outwardly from the portion 10 to permitthe device to be hung up when desired. The arm 8 carries a pair ofcontacting guide strips 14 and 15, which project laterally from oppositesides of the member 8 at its free end. These guide strips 14 and 15 aresharply angularly turned inwardly toward each other as at 16. The outerface of the free end of the arm 9 is pressed inwardly to provide thegroove 1'7, and extending inwardly from the edge of the free end so asto project across the groove 17, is a slot 18. A blade holding plate 19is provided with a lug 20 which projects through the slot 18.

A pin 21 is projected through the lug 20, and lies in the groove 1'7, sothat the blade holder 19 is rockabiy mounted on the end of the arm 9.Spaced bosses 22 project outwardly from the front face of the bladeholder 19. It is preferable that the plate 19 be magnetized so that asteel blade, placed thereon, will not fall off. The blade holder 19 isof less width than the blade 23 so that the cutting edges thereofproject beyond the edges of the holder 19.

Most safety razor blades have a slot or an opening formed therethroughfor mounting on a razor blade holder and in the use of this device, theblade 23 is positioned on the plate 19 with the bosses 22 projectingthrough the openings 24. The device is then mounted on a suitablecylindrical body which will serve the purpose of honing or sharpening.In the drawing, I have illustrated the device used with a tumbler 25.The

arm 9 is projected inwardly of the tumbler 25,

while the arm 8 is exterior thereof. The members 8 and 9 are thenpressed toward each other until the guide strips 14 and 15 engage theperiphery of the tumbler 25 and the edges of the blade 23 are broughtinto engagement with the inner surface of the tumbler 25. While thedevice is gripped and retained in this position, the blade may be movedcircumferentially of the tumbler for effecting the honing or sharpeningdesired. It will be noted that the tumbler is tapered, which is ageneral characteristic of tumblers. Were the device to be used withother cylindrical bodies, the same taper would be encountered and tocompensate for this taper, the blade carrying plate 19 is rockablymounted. As previously described, this permits a self-adjustment of thedevice to the various tapers of the tumbler 25 or other similar bodieswith which it may be used so that the longitudinal edges of the blade,which arethe cutting edges, will lie in contact with the cylindricalsurface of the tumbler throughout their length and a universalsharpening or honing of the razor blade throughout its length may beeffected.

It is quite customary for users of razor blades to hone the razor bladeby use of a water glass, pressing the blade with the fingers against theinner surface of the glass and moving the blade circumferentially of theglass while so pressed against this surface. This often results incutting of the fingers, and particularly it results in an improper orunsatisfactory blade, in that the pressure on the blade is not uniformthroughout its length and a tilting of the same relatively to the axisof the water glass results. With the present device, the blade isuniformly pressed throughout its area against the concave or cylindricalsurface, and a maximum efiiciency in sharpening is thus obtained.

While I have illustrated and described the preferred form of myinvention, I do not wish to limit myself to the precise details ofstructure shown, but desire to avail myself of such variations andmodifications as may come within the scope of the appended claims.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is:

1. A blade holder of the class described comprising: a pair of armsrelatively movable toward each other at one of their ends; laterallyprojecting guide strips carried by one of said arms adjacent the movableend; and a blade supporting member rockably mounted on the inner side ofthe other of said arms adjacent its movable end.

2. A blade holder of the class described comprising: a pair ofsupporting arms relatively movable towards each other at one of theirends; guide strips carried on the movable end of one of said arms; ablade supporting plate; and means for mounting said blade supportingplate rockably on the movable end of the other of said arms.

3. A blade holder or" the class described comprising: a pair ofsupporting arms movable relatively toward each other at one of theirends; guide strips carried on the end of one of said arms; a bladesupporting plate; means for rockably mounting said blade supportingplate on the movable end of the other of said arms, positioned inwardlythereof and directed toward the guide strip carrying arm.

4. A blade holder of the class described comprising: a pair of resilientarms secured together at one of their ends and normally spaced apart attheir opposite ends; guide strips projecting laterally opposite fromopposite sides of the free end of one of said arms; and a blade carryingplate swingably mounted on the free end of the other of said armspositioned inwardly thereof.

5. A blade holder of the class described comprising: a pair of resilientsupporting arms normally spaced apart at one of their ends; guide stripscarried on one of said arms and adapted for engaging the periphery of acylindrical body with which used; a blade supporting plate; and meansfor mounting said blade supporting plate on the free end of the other ofsaid arms in such a manner as to be movable relatively thereto foradjusting itself to the taper of the cylindrical body with which used.

CHRISTOPH RUI-ISERT.

